Outokumpu to build dowel bars for Mega Reservoirs in Qatar

Monday, 08 February 2016 06:20

Dowel bars are used in expansion joints for the movement of lateral loads and manage stress within a joint. (Image Source: Outokumpu)Habtoor Leighton Group (HLG), contractor for PRPS 3 and Big Blue, has made a supplier agreement to use stainless steel dowel bars manufactured by Outokumpu for the Mega Reservoirs PRPS-3 at Rawdat Rashed in Qatar

Outokumpu’s bars will be supplied in grade Supra 316L/4404 to be used in the expansion joints for rafts and walls of the reservoirs.

Outokumpu will provide 350 MT of round stainless steel dowel bars for the reservoirs. These bars will be debonded and movements are allowed by specially manufactured sleeves by Big Blue, which includes uPVC pipe, compressible filler and end cap. One half of the dowel is embedded into concrete while the other half is debonded to allow the movement at the expansion joints.

The objective of the project is to provide seven days’ potable water storage in new reservoirs, combined with the existing and future secondary reservoirs.

John Stansfield, general manager at Outokumpu, said, “Stainless steel is an ideal material for infrastructure projects such as the Rawdat Rashed in the Qatar Mega Reservoir projects due to its high corrosion resistance and low life-cycle costs.”

The new projects will include five primary reservoirs and pumping station (PRPS) packages with a capacity of 100mn gallons each.